It's forcing a service by federal mandate, they're abusing the commerce clause by calling it a tax. Period, end of fucking story.

Well the Supreme Court has ruled the penalty a tax, which is within Constitutionally-granted Congressional power, so it is in fact Constitution as decreed by the Supreme Court. A majority conservative Supreme Court no less. You are not mandated to buy health care; you are just made to pay a penalty if you don't.

They redefined it as a tax to get around it, but let's call it for what it really is please.